A real-world application is the practical use of a concept or technique in a variety of fields. It can involve solving complex conditions in real time. 
 
Some examples of real-world applications include:
1. Wearable sensors: Used in space exploration, health monitoring, and assistive technology 
2. Driver behavior recognition: A real-time application that can meet computational requirements 
3. Traffic system: Monitors and collects real-time traffic information 
4. Voice-Image-Sensor app: Measures individual food and nutrient intake 
5. IT systems: Used in many day-to-day activities, such as scanning bar codes at a supermarket checkout 
 
The term "real-world" refers to something that happens in the world or in someone's life, rather than in the imagination or in a book.